Details

Autor(en) / Beteiligte

• Vianey-Liaud, Monique
• Marivaux, Laurent
• Lehmann, Thomas

Titel

A Reevaluation of the Taxonomic Status of the Rodent Masillamys Tobien, 1954 from Messel (Germany, Late Early to Early Middle Eocene, 48–47 M.Y.)

Ist Teil von

• Fossil Imprint, 2019-12, Vol.75 (3), p.454-483

Ort / Verlag

Sciendo

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This paper clarifies the identification of the three species referred by Tobien (1954) to the genus from Messel, and more specifically provides a revision of their diagnosis and differential dental features, using an updated terminology. Based on specimens better preserved than the holotype ( ), it appears that this genus had an infraorbital area more hystricomorphous than sciuromorphous. As the genus shares dental features – like a long oblique postprotocristid or the occurrence of a metalophid I on the lower molars, the relatively well-developed hypocone on the upper molars, as well as hystricomorphy –, notably with and , is here included among the basal Theridomorpha.